Long press a blank space on the desktop (or pinch with two fingers on the desktop), click More Settings (or Settings) in the lower right corner, and turn on/off the "Minus One Screen" switch. After turning on the negative screen function, the negative screen will become the leftmost screen of the desktop, providing you with services such as search, application recommendations, and situational intelligence. Open the global search box to quickly find settings, applications, and files.
Note: In EMUI 8.0, this feature has been renamed: Intelligent Assistant, and the operation method is the same as the negative one screen.